Today, at Suzhou Railway Station, two blue auxiliary police officers wanted to see their driver's licenses and license plates. Did they meet a liar?

Don't worry, this is just an information gathering behavior of the police. Mobile phone serial number registration is because the serial number of each mobile phone is different, so your information is bound to your mobile phone. If you find this mobile phone at the crime scene in the future, or if this mobile phone has something to do with the suspect, you should be the first person to think of.